Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 536929
Title Rapid divergence of mussel populations despite incomplete barriers to dispersal
Author(s) Maas, Diede L.; Prost, Stefan; Bi, Ke; Smith, Lydia; Armstrong, Ellie E.; Aji, Ludi P.; Toha, Abdul H.A.; Gillespie, Rosemary G.; Becking, Leontine E.
Source Molecular Ecology 27 (2018)7. - ISSN 0962-1083 - p. 1556 - 1571.
DOI https://doi.org/10.1111/mec.14556
Department(s) Marine Animal Ecology
WIAS
IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract Striking genetic structure among marine populations at small spatial scales is becoming evident with extensive molecular studies. Such observations suggest isolation at small scales may play an important role in forming patterns of genetic diversity within species. Isolation‐by‐distance, isolation‐by‐environment, and historical priority effects are umbrella terms for a suite of processes that underlie genetic structure, but their relative importance at different spatial and temporal scales remains elusive. Here, we use marine lakes in Indonesia to assess genetic structure and test relative roles of the processes in shaping genetic differentiation in populations of a bivalve mussel (Brachidontes sp.). Marine lakes are landlocked water bodies of similar age (6,000 – 10,000 years), but with heterogeneous environments and varying degrees of connection to the sea. Using a population genomic approach (double‐digest Restriction‐site Associated DNA sequencing), we show strong genetic structuring across populations (range FST: 0.07 – 0.24), and find limited gene flow through admixture plots. At large spatial scales (>1400km), a clear isolation‐by‐distance pattern was detected. At smaller spatial scales (<200km), this pattern is maintained, but accompanied by an association of genetic divergence with degree of connection. No signatures of isolation‐by‐environment were found. We hypothesize that (incomplete) dispersal barriers can cause initial isolation, allowing priority effects to give the numerical advantage necessary to initiate strong genetic structure. Priority effects may be strengthened by local adaptation, which our data potentially corroborates by showing a high correlation between mussel genotypes and temperature. Our study indicates an often‐neglected role of evolution‐mediated priority effects in shaping population divergence.
Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.